The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 2013
Filed:
Dec. 20, 2010
David Leuliet, Woicourt, FR;
Francois Nicolle, Tourville la Chapelle, FR;
David Leuliet, Woicourt, FR;
Francois Nicolle, Tourville la Chapelle, FR;
Abstract
A device for dispensing and receiving a liquid or semi-liquid product via a dosage chamber of a pump body. The device includes a piston which is fixably mounted in the pump body and is provided with an end sealingly engaged into the chamber. The piston end is provided with a membrane forming an intake valve allowing the introduction of the product in the dosage chamber and including at least one sealing peripheral lip in sliding contact with an inner wall of the dosage chamber. The device includes a connection element wholly within the pump body for connecting the piston to the pump body. The connection element is an independent part from the membrane and the pump body and is connected to a bottom part of the pump body over a conduit extending up from the bottom part of the pump body.